Design a cam, turning counterclockwise, to give a reciprocating follower, slide 4, following motion: rise 4.25 inches with simple harmonic motion during 135 degrees rotation of the cam; rest for 45 degrees; drop 1.25 inches instantly; drop 3 inches with harmonic motion during 120 degrees; remain still for 60 degrees. Oscillating arm AC is 14 inches long and carries a roller .75 inch in diameter running on a journal B, 8 inches from A and on the center line of AC. This roller is actuated by the cam. A connecting link CD, 6 inches in length, joins C to the slide 4 at D. D is below AC. The fixed axis A, of AC, is 6.5 inches to the left and 3 5/8 inches above the axis of rotation of the cam. The center line of travel of D is vertical and 6 inches to the right of the axis of rotation of the cam. AC is to travel equal angular distances above and below the horizontal.
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